In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) and LG K51S. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
DESIGN AND DIMENSIONS | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | ZX551ML | LM-K510EMW | |
Form Factor | Touch | Touch | |
Height | 158.9 mm | 165.2 mm | LG K51S has greater height than ASUS ZenFone Zoom (ZX551ML). |
Width | 78.8 mm | 76.7 mm | ASUS ZenFone Zoom (ZX551ML) has greater width than LG K51S. |
Depth | 12 mm | 8.26 mm | LG K51S is narrower than ASUS ZenFone Zoom (ZX551ML). |
Weight | 185 g | 194 g | ASUS ZenFone Zoom (ZX551ML) is lighter than ASUS ZenFone Zoom (ZX551ML). |
Body Colour | Ceramic white | Pure black | Pink | Titan | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 0.432 W/kg (body), 0.343 W/kg (head) | 1.335 W/kg (body), 0.501 W/kg (head) | |
Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
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SIM Card Type (Size) | Micro SIM | Nano SIM | |
SIM Card Qty | - | Dual-SIM |
DISPLAY | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Display Type | LCD display | LCD display | |
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Display Technology | IPS | IPS | |
Screen Size (Display Size) | 5.5" | 6.55" | LG K51S has larger screen size than ASUS ZenFone Zoom (ZX551ML). |
Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | ASUS ZenFone Zoom (ZX551ML) has better screen resolution than LG K51S. |
Display Format | Full HD | HD+ | |
Pixel Density | 401 ppi | 268 ppi | ASUS ZenFone Zoom (ZX551ML) has better pixel density than LG K51S. |
Aspect Ratio | - | 20:9 | |
Max Brightness | - | 400 cd/m² | |
Colour Depth | 16.7 million colours | - | |
Display Features | - | Reading mode, FullVision display, night mode, hole in display | |
Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Tempered glass |
PROCESSOR | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Processor Type (CPU) | Intel Atom | MediaTek | |
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Processor Number | Z3590 | MT6765 | |
Clock Speed | 2.5 GHz | 2.3 GHz | ASUS ZenFone Zoom (ZX551ML) has higher clock speed than LG K51S. |
Processor Core Qty | Quad-core | 8-core | LG K51S has higher processor core quantity than ASUS ZenFone Zoom (ZX551ML). |
64-bit Architecture | - | Yes | LG K51S has 64-bit architecture. |
Graphics System (GPU) | PowerVR G6430 | IMG PowerVR GE8320 |
MEMORY | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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RAM | 4 GB | 3 GB | ASUS ZenFone Zoom (ZX551ML) has more RAM than LG K51S. |
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Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | LG K51S has more internal memory than ASUS ZenFone Zoom (ZX551ML). |
User Memory | - | 50.2 GB | |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 2 TB |
CAMERA | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 4 | |
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Sensor Resolution | 13 Megapixel | 32 Megapixel | LG K51S has better camera resolution than ASUS ZenFone Zoom (ZX551ML). |
Lens Aperture | F/2.7-4.8 | F/1.8 | LG K51S has better lens aperture than ASUS ZenFone Zoom (ZX551ML). |
Field of View (FoV) | - | 76.3 degree(s) | |
Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | ASUS ZenFone Zoom (ZX551ML) has optical stabilisation. |
Focus Adjustment | Automatic | Automatic | |
Laser Auto Focus | Yes | - | |
Minimum Focal Length (Focal Distance) | - | 24 mm | |
Digital Zoom | 3x | 8x | LG K51S has better digital zoom than ASUS ZenFone Zoom (ZX551ML). |
Self-Timer Delay | - | Yes | |
Special Effects | - | HDR | |
HDR Mode | Auto HDR mode | - | |
Camera Modes | Panorama | Burst mode, portrait mode, Flowers, Animals, Food, Person, Sunset, Sunrise, City, Landscape | |
Face Recognition (Face ID) | Face detection | Face detection | Both phones have face detection. |
White Balance | - | Automatic | |
Light Source | Dual LED flash | LED flash | |
Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps | |
Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF), geotagging, Big Pixels technology, Quad Pixel technology |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | - | 5 Megapixel | |
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Lens Type (2nd Camera) | - | Super wide-angle lens | |
Lens Aperture (2nd Camera) | - | F/2.2 | |
Field of View (2nd Camera) | - | 115 degree(s) | |
Minimum Focal Length (2nd Camera) | - | 16 mm |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
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Lens Aperture (3rd Camera) | - | F/2.4 | |
Field of View (3rd Camera) | - | 88.9 degree(s) | |
Camera Functions (3rd Camera) | - | Depth camera |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | - | 2 Megapixel | |
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Lens Aperture (4th Camera) | - | F/2.4 | |
Field of View (4th Camera) | - | 88.6 degree(s) | |
Camera Functions (4th Camera) | - | Macro camera | |
Camera Features (4th Camera) | - | 4cm macro photography |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 5 Megapixel | 13 Megapixel | LG K51S has better front camera resolution than ASUS ZenFone Zoom (ZX551ML). |
Lens Aperture (Front) | F/2.0 | - | |
Camera Modes (Front) | - | Gesture Shot, Selfie portrait | |
Face Recognition (Face ID) | - | Face detection | LG K51S has face detection. |
Camera Features (Front) | - | 17 filters |
BATTERY AND CHARGING | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Battery Capacity (Battery Size) | 3000 mAh | 4000 mAh | LG K51S has larger battery capacity than ASUS ZenFone Zoom (ZX551ML). |
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Standby Time | - | 100 hours | |
Talk Time | - | 480 minutes | |
Run Time Details | - | Talk: up to 480 min Standby: up to 100 hrs |
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Battery Technology | Lithium polymer | Lithium Ion |
CELLULAR | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 5.0 (Lollipop) | Android 9.0 Pie | |
User Interface | ASUS ZenUI 2.0 | LG UX 9 | |
Intelligent Assistant | - | Google Assistant | |
Navigation | A-GPS, GLONASS, BeiDou | GPS |
COMMUNICATIONS | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
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2G Band | 850 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 9, Band 18, Band 19, Band 28 | Band 1, Band 3, Band 7, Band 8, Band 20, Band 38 | |
4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 1800, FDD 800 lower, FDD 800 upper, FDD 700 APT | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD, TDD 2600 | |
Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n | |
Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 BLE | |
Bluetooth Profiles | A2DP | HFP, HSP, OPP, PAN, SPP, GOEP, A2DP, AVRCP, HID, SAP, GAVDP, PBAP, MAP, GATT, HDP, HOGP, ScPP | |
NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Supported Digital Audio Standards | - | WMA, AAC, PCM, MP3, FLAC, AAC +, eAAC+, OPUS, AMR-WB, AMR-NB, Vorbis | |
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Supported Digital Video Standards | - | MKV, FLV, AVI, WMV, ASF, 3GP, TS, WebM, OGM, MP4 | |
Sound Enhancements | - | DTS: X 3D Surround Sound |
FEATURES | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Phone Functions | Speakerphone, call timer, conference call, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
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Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
Security Devices | - | Fingerprint reader | |
Additional Phone Features | Multitasking | DLNA Certified, Dual microphones, KnockON, QuickMemo+ function, Mini View function, Capture+, EasyHome, Clip Tray, Google Lens, AI Cam, Game Tools, Google Assistant Button |
OTHERS | ASUS ZenFone Zoom (ZX551ML) | LG K51S |
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Included Accessories | Power adapter | Power adapter, SIM card removal tool, USB-C cable | |
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Compliant Standards | - | MIL-STD 810G |